← Back to Codec Support Table

Codec: avc1.4d0428

86.5% Encoder Support
277,690 of 321,030 sessions supported encoding
99.93% Decoder Support
269,924 of 270,107 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,030 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.29% 143,283 / 144,314 99.83% 19,583 / 19,616 — 97.65% 62,333 / 63,836 97.79% 7,579 / 7,750
SafariSafari
 — 1.93% 165 / 8,549 1.47% 461 / 31,444 — —
EdgeEdge
 99.79% 30,873 / 30,937 100.0% 347 / 347 — 99.3% 996 / 1,003 100.0% 56 / 56
FirefoxFirefox
 95.77% 9,342 / 9,755 100.0% 1,318 / 1,318 — 0.0% 0 / 29 98.98% 1,257 / 1,270

VideoDecoder Support Matrix

Browser × Platform decoder support from 270,107 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,906 / 121,941 99.86% 15,941 / 15,964 — 99.99% 53,893 / 53,900 99.13% 6,496 / 6,553
SafariSafari
 — 99.94% 7,163 / 7,167 99.98% 25,847 / 25,851 — —
EdgeEdge
 100.0% 26,954 / 26,954 100.0% 310 / 310 — 100.0% 937 / 937 100.0% 52 / 52
FirefoxFirefox
 100.0% 7,914 / 7,914 100.0% 1,094 / 1,094 — 0.0% 0 / 25 99.05% 1,041 / 1,051